It seems there was a slight interruption in our previous conversation. Let's complete the calculation for the mean mark and then proceed with the remaining parts of the question (e, f, g) using the fr
This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
It seems there was a slight interruption in our previous conversation. Let's complete the calculation for the mean mark and then proceed with the remaining parts of the question (e, f, g) using the frequency distribution table we established.
Here is the complete frequency distribution table with $x=15$:
| Marks (Class Interval) | Frequency (f) |
|---|---|
| 10-19 | 10 |
| 20-29 | 15 |
| 30-39 | 15 |
| 40-49 | 27 |
| 50-59 | 18 |
| 60-69 | 10 |
| 70-7
